2 results about "Container space" patented technology

The application discloses a phase change cold storage container with high space utilization, a design method and an installation method, wherein the design method comprises the following steps: setting a plurality of groups of thermal insulation layer thicknesses, obtaining the cold quantity requirement of the container through a container heat load multi-physical field coupling mathematical model, and calculating the phase change cold storage layer thickness corresponding to each group of thermal insulation layer thicknesses according to the cold quantity requirement to obtain a mapping set of the thermal insulation layer thickness and the phase change cold storage layer thickness; and determining a group of thermal insulation layer thickness and the corresponding phase change cold storage layer thickness from the mapping set with the principle of minimizing the sum of the thermal insulation layer thickness and the phase change cold storage layer thickness, so as to realize the cold quantity requirement of the container and maximize the utilization rate of the inner and outer spaces of the container. The combination of the thermal insulation layer thickness and the phase change cold storage layer thickness obtained through the embodiment realizes the cold quantity requirement of the container and maximizes the utilization rate of the container space, improves the cargo transportation efficiency, and solves the problem that the prior art blindly increases the cold storage layer thickness to meet the cold storage requirement.

The application discloses an irregular rock three-dimensional packing optimization method based on a partial random key genetic algorithm, and relates to the technical field of packing optimization, and particularly relates to a method for packing irregular rocks in a limited container. The method comprises the following steps: visual sampling and three-dimensional reconstruction are performed on rock samples; a grid model is processed; the partial random key genetic algorithm is initialized to generate an initial population; a collision model of a container and an OBB (Oriented Bounding Box) is established, and the position and posture of the container and the OBB are set; a collision model of each OBB corresponding to the rock sample is established, and the position and posture of the OBB are set; gravity and friction are added, and the container space occupancy rate is calculated as the fitness of an individual; the population individuals are divided into two categories, i.e., elite individuals and general individuals, according to the fitness, the population is subjected to copying, crossing and mutation operations according to the partial random key genetic algorithm, and a next generation population is generated; the operation is repeatedly performed, and when a termination condition is met, the maximum fitness individual is decoded to output the final position and posture of each rock sample after packing as a final packing scheme. The application can realize maximum packing of irregular rocks in a limited container.